Apparatus for the manufacture of glassware.



' RjgEJVM-JGI. Patented July l5, I902, u. SCHAUB.

APPARATUS FOR THE MANUFACTURE OF GLASSWABE.

(Application filed Apr. 29, 1902.)

(U0 IMQIJ mven'ro z,

w n-messes M f w minke. STATE A'rm'r ,FrircEQQ HENRY SGHAUB, or MoUN'r' PLEASANT,"PENNSYLVANIA,I ASSIGNOR o BRYCE BROTHERS COMPANY, O MOUN PLEASANT, PENNSYLVANIA, A oonrona'rion or P NusYLvANIA.

1 APPA-eAi'us Fee iiis MANUFACTURE OF G'LA-SSWARQH sr ncirresrron reami part of Letters Patent No; 704,761, dated July 15,1902. Y hpplicationfiledh pril29,1902. some No.- 106-218. on model.)

v To all 'whom 6 may concern..-

r Berit known; that- I, HENRYS'GHAUB, of Mount. Pleasant, in the county of Westmoreland and State of Pennsylvania, have invent- 5 ed acertain new and usefullmprovement in' Apparatus for the Man ufactu re of Glassware, oi which improvement'the' following is a p fi ati -i o The object of my invention: is to provide IQ simple and; inexpensive means whereby the glassware ,may be effected expeditiously at is: low-cpst and withom involving the employinent of skilledlaboLf? A v The improvement claimed is hereinafter fully set-forth; i

In 'the'aecgmpanyingdrawingsfFigureljs a vertic'al cen tral section, part1 yin elevation, through an apparatus for the n1,annia'ctnre of glassware in ahisordance with myinvention Fig. 2, a similar section through the upper portion of the same, showing the pl'ungerat the terminal of its working stroke; and Fig. 3, a section, on an enla' god scale, through the operating-cock. 1

j In the practice of my invention the body or Q bowl of the glass article is blown and placed while hot upon the top of a mold havinga 5' cavity shaped in correspondence with the.

stem, which is formed by pressing a proper quantity or gathering of glass in the moldcavity. ,A longitudinal cavity is then blown in the stem by the introduction of an airblast thereinto while it is hot and plastic and 5 confined against outward change of form. The stem and foot may be pressed integrally, or the foot may he made separately and united to the stem after the cavity has been blownrtherein and while the glass is hot. j 4o In the apparatus shown in the drawings which cbhstitutes my invention 1 provide a supporting-frame 1, to the lower portion of. w ichis connected an air-cylinder 2, in which is fitted a piston 3, secured upon a piston-rod 4, which passes through-a properly-packed 1 stuffing-box 5 in the upperhead'cf'the cyl- I inder 2. An air-supply'pipe 6, leading froma reservoir, compressor, or other source of air under pressure, which is not shown, and con- 5o trolled by a two-way operating cock or valve paratnsthe bowl or body'c or theglass, artiwe manufacture of hollow-stemmed articles of 7 ,"o pens into the lower endi of the cylinder 2,

and a pipe 8 leads from the'upper end of the cylinder to the casingof the'operating-cocl; 7, inwhich casing there is formed airatmospheric exhaust porterpassagev 9.

' A plunger 10, which is connected upper end oi the piston-rod 4 in line axially th ere with, is" fitted to traversefin a cylinder 11 secured upon the upper, portion'of the frame 1, and'the upper endofthe cylinderll is open to a two-part iuold 12, which is supported 0nthe frame immediately above it. i The cavity or internal space 13fof the mold to the stems whichi areito be inanufiactnre d, which-mayieither be made withintegral feet. or have their 9611 separately made and snir' pa'ssage'leisfqi' iedcentraliy in the'plun germane" is connected at its lower en" by a flexible 1 05.616- with an air-supply Jcoclr or valve- 15, controlling. communication be: tween it andth air supply pipe'e. A 'doublearmed valve-1e er 17 is pivoted centrallynn a standard 18, fixed toj'the fram'e,;one arnr'of saidlever-fittingagainst the stein-of the air-; supply valvev and-the other projecting'in position tobe contacted with and moved by a tappet 19, fixed to the plunger 10, when the latter approaches the terminal of its upward or working stroke, thereby opening the airvalvehy the pressureof the oppositearxn on the stem thereof. The air valve is closed and the lever 17 returnedto normal position by a spring 20, when the tappet19 is withdrawn from contact with the lever by the downward movement of the plunger, The ,upper end of the air-passage 14 is p'ontrolled by an automatically-.7 operative valve 21,- which is fixed u pen as'te'm 22, passing through the air-passage andimade of sinaller diameter" than the latter or provided with longitudinal grooves on its periphery,- so as to; permit free passage of air, and the valve is normally held seated by its ownwei'ght and that of the glass inthe cylinder andmold above it. The opdle23. i

In the operation of the above-descrihe'ad'ap;

is made of the-013,511 desir'ed to imparted seque ily-aascned, as preferred. Anyairicrating-cock 7 is man nally actuated by ajhau 'l cie is blown in a suitable mold. A gathering l of glass of proper quantity to form the stem or the stem and foot, as the case may he, is

supplied to the cylinder lland the hot bowl or body is set upon the top of the mold 112. The operating-cock 7 is then turned into position to admit compressed air to the cylinder 2 on the lower side of its piston 3, which is thereby elevated, carrying with it the plunger 10, by the action of which the stem a is formed by pressing the glass into the cavity of the mold 12. As the plunger approaches the terminal of its upward orworking stroke the connected tappet 19 comes in contact I with the valve-lever l7 and swings the latter upon its central bearing, thereby opening the air-supply valve 15 and admitting compressed air from the supply-pipe 6 through the flexible hose 16 to the central passage 14. The

a air-blast thus admitted unseats the valve 21 and passing intothe mold 153 blows a central cavity or space I) in the stem. "By shifting the operating-cock 7 into position to cut oil. the supply of air to thel'ower end of thecylinder 2 and open communication'between the same. and the exhaust-passage 9 and between the pipe .8, leading into the upper end of the cylinder 2 and the supply-pipe 6, the piston 3 and connected plunger 10 are forced downwardiy into the position shown in Fig. 1, in

which they arein readiness for a succeeding operation. When thetappet 19 is withdrawn from contact with the valve-lever 1 7 in the I downward traverse of the plunger, the air- 1. In an apparatus for the manufacture of glassware, the combination of a fluid-pressure "cylinder, a piston and rod working therein, a

rocates, a. partiblo press-mold communicating with. said cylinder, and means for admitting an air-blast to the press-mold. p

2. In an apparaths for the mannfactnreoi glassware, the combination of a fluid-pressure cylinder, a piston and rod working therein,a pressing-plunger connected with the piston rod, a cylinder in which said plunger reciprocates, a partilile press-mold communicating with said cylinder, means for admitting an air-blast to the press-moland means for controlling the admission of the air-blast by the traverse of the plunger.

3. In an apparatus for the manufacture of glassware, the combination of a fluid-pressure cylinder, a piston and rod working therein, a

pressing-plunger connected with the piston rod, a cylinder in which said plunger recip rocates, a partible press-mold communicating with said cylinder, a passage extending through the plunger, a flexible air-supply conduit leading into said passage, an automatic:-

tion between said conduit and the press-mold, an air-supply valve controlling the air-supply conduit, a valve-lever adaptedto open said sn pp-ly-valve, and a tappetfixed to the plunger, iii-position toaetuate the valve-lever.

'-l.' In an apparatus-for the manufacture of glassware, the combinatioucf a fluid-pressure cylinder, a piston and rod working therein, a pressing-p111nger connected with thepistonrod'and having a longitudinal air-passage, a cylinder in which said plnngerreciprocates, a partiblo press-mold communicating with said cylindcr an automatically operative valve-seating in the air-passageoifthe plunger and controliin g communication between said passage and the pressemold, a flexible airsupply conduit leading into said, passage, an

. air-supply valvecontrolling said conduit, a

"valve-lever adapted Eto operate said supplyvalve, and a tappet-fi-x-ed to the plunger in position to-actuate the valve-lever.

HENRY SCIIAUB. Witnesses:

pressing-plunger connected with the pistonlead, a cylinder in which said plunger recip= HUGH CLOSE,

ERA/Karin 7 ally-operating valve controlling cominunica- I 

